Warp stop motion for looms



Nov. s, 1928. 1,690,921

H. BRUNEAU WARP STOP MOTION FOR LOOMS Filed D60. 31, 1923 INVENTOR TTOE handle, permits the spring to act, and stops the loom. The loom control will not be further detailed because it is well known and enters into the present invention as a whole. Further there are other known types of loom control with which my invention is equally available without limitation to that have preferred to show it in conjunction with such a device. Belowthe dagger is mounted a magnet 31, the armature of which is connected with the dagger 30' by a wir'e 32. This magnet forms part oi an electrical cir-- cuit 33 deriving its current from a source ot-electrical energy 34 and including a drop wire system 35. When a drop wire falls, closing the electrical circuit, the magnet 31 is energized and raises the dagger 30. WVith each reciprocation of the lay l, the bunter 11 is moved toward and away from the dagger 30. When the shuttle 4 is not in the box 2, the binder 3 is in its relaxed, inward position, and the bunter 11 is held by the lever 6 in a position such that the extremity of the bunter is held to a path of travel awa from the dagger 30, so that whether the latter is raised or lowered no encounter can occur between the bunter and dagger,

\ This condition ensues at every alternate pick I because the shuttle is in this box only every other pick.

At every intervening alternate pick the shuttle is in this box, in which case the binder 3 is pressed outward and acting thru the lever 6 swings the bunter into the position indicated by Fig. 3, where its extremity travels in a path where it will be encountered by the dagger 30, providing the latter is raised into the path otmovement of the'bunter. In such event, the dagger will yield tothe encounter, turning its lever 28 and the rod 19 in the direction of the arrow A and with them the loom handle 21. This, as above explained, unlocks the handle 21 and causes the stopping of the loom. The,

release occurs as the lay is beating forward, with: the shuttle in the box. Carried by its momentum, the lay returns to its back stroke position, and the shuttle is thrown across the loom to the opposite box. J Bearing in mind the variety of loom constructions and multitude of warp stop adaptations prevailing, it is obvious that the in-' -j vention herein set forth will require in its embodiment diversified construction and arrangement.

Therefore, without limiting myself to the recisg construction and arrangement set orth herein, I claim: a 1. In a stopping device for a loom, the

combination with the loom handle, reciprocating lay and binder carried by the lay,

stop motion dagger normally at inactive position, means connecting the stop motion dagger with the loom handle and means to shift the stop motion dagger from inactive position to active position, of a shiftable bunter carried by the lay with its extremity moving at some timesin path away from the dagger in any position of the latter, and

means thru which the binder acts to shift 7 the bunter into a path of travel where its extremity will encounter the dagger when the latter is in active position.

2. Ina stopping device for a loom, the

combination. with the movable dagger of its 3. The combination with the loom control, warp stop motion comprising a, dagger and means to raise the dagger upon breaking of a warp thread, and connections between the dagger and loom control, of a hinged bunter and means to carry it on a part of the loom moving toward and away from the said dagger, a lever engaging the bunter, and means to control the position of the lever to alternately shift the extremity of the bunter from a path of movement in which it cannot encounter the dagger in any position of the latter, to a path of movement in which it shall encounter the dagger when the latter is raised.

4. The combination with the control devices of a loom, warp stop motion comprising a dagger, connections between the said controlling devices and Warp stop dagger, the lay, shuttle box and. its binder, of'a bunter bracket carried by the lay, a shiftable bunter mounted on the bunter bracket and a lever also mounted on the lay, said lever engaging by one of its cams the shiftable bunter and by its other arm, bearing against the binder in the manner and 'for thepurposes described. it

5. The combination with the controlling devices of a loom, warp stop motioncomprising-a dagger, connections between the loom controlling devices and warp stop dagger, the lay, shuttle box, shuttle and binder for said shuttle, of a bunter bracket carried by the lay, a shiftable bunter, mounted on the bracket and a lever also mounted on the lay, engaging by one of its arms the shiftable bunter, and bythe other arm bearing upon the. binder so that, when the shuttle is in thevbox pressing the binder outward, it holds the hunter in position to encounter the dagger when the latter is active, and when the shuttle is out of the box, the binder in its released position causes the return of the bunter to a station where it cannot encounter the dagger in any other position of I the latter.

6. In a loom, the combination with the shuttle, shuttle box, and warp stop motion of means acted upon by the shuttle on en-' tering the box to stop motion. p

7. In a loom, the combination with the shuttle, shuttle box, and warp stop motion, of means acted upon by the shuttle on leaving the box to prevent action of the warp stop motion. V

8. In a loom, the combination with the shuttle box, shuttle and binder therefor, of a warp stop motion and means to control the timing of the warp stop motion thru the shuttle binder. I

9. In a warp stop motion, the combination with the loom control and movable daggerto react upon said control to stop the loom, of a bunter movable toward and away permit action of the warp from said dagger in a path to encounter it and cause such reaction, means to shift the extremity of the bunter in a path transverse to the plane which defines the position of the dagger to withdraw the bunter from said path of encounter to time the warp stop action.

v 10. In a warp stop motion, the combination with the loom control, a warp stop dagger to react upon said loom control, which da 'ger is normally in nonactive position, an movable in a given plane into active osition, and means to move the dagger rom nonactive to active position, ofa bunter movableboth toward and away from said dagger and in a directiontransverse to theplane of movement of the dagger and means to move the bunter in such transverse direction to escape encounter with said dagger when in active position.

-11. In a warp stop motion, the combinations With a dagger movable in one plane and means to move the dagger, of a bunter movable to and from the general position I of said dagger and having. an additional movement transversely of the plane of movement of said dagger andmeans to impart such transverse'movement of the bunter for the purpose specified.

' ,HUDGER BRUNEAUI 

